style.css

* {
    margin: 0;
    padding: 0;
}

body {
    background: linear-gradient(to top, #0B3C3D, #126668) no-repeat center center fixed;
}

nav {
    height: 15vh;
    display: flex;
    align-items: center;
}

#menu {
    display: none;
    height: 5vh;
    margin-left: 3vw;
}

#navlinks {
    display: none;
    background-color: #212121;
    font-family: 'Bebas Neue', cursive;
    font-size: 4vh;
    padding-top: 1vh;
    padding-bottom: 1vh;
    padding-left: 3vw;
    padding-right: 3vw;
}

#navlinks a {
    color: white;
    text-decoration: none;
    padding-left: 3vw;
    padding-right: 3vw;
}

nav ul {
    display: inline-flex;
    list-style: none;
    justify-content: left;
    margin: auto;
    margin-left: 3vw;
}

nav ul li {
    font-family: 'Bebas Neue', cursive;
    font-size: 3vw;
    color: #FCDC59;
    padding-left: 2vw;
    padding-right: 2vw;
}

nav a {
    text-decoration: none;
}

#navreg {
    font-family: 'Bebas Neue', cursive;
    font-size: 3vw;
    color: white;
    background-color: #FF5757;
    padding-right: 2vw;
    padding-left: 2vw;
    margin-right: 5vw;
    border-radius: 10px;
}

footer {
    text-align: center;
    margin-bottom: 5vh;
    color: white;
    font-family: 'Roboto', sans-serif;
}

footer a {
    text-decoration: underline;
    color: lightblue;
}

@media (max-width: 800px) {
    nav ul {
        display: none;
    }
    #navreg {
        display: none;
    }
    #menu {
        display: block;
    }
}